The mega drive range of screwdrivers feature a unique ergonomically designed bi material handle which gives excellent grip with exhaustive quality control tests these teng tools screwdrivers ensure that the head fits securely into the screwdriver head allowing torque to be applied more easily the screwdriver blades are made from strong chrome vanadium steel with black tips and are manufactured to dn5264this 7 piece set of screwdrivers contains the following torx screwdrivers for internal heads2